Alarm Systems
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SaleVendor:Ness SecurityReplacement Alarm Battery 12V 7AH For Ness Security Hills Reliance Bosch Security Alarm
Regular price $41.95Sale price $41.95 Regular priceUnit price per$69.00 -
SaleVendor:Ness SecurityNess Bridge Ethernet Interface
Only 9 leftRegular price $164.00Sale price $164.00 Regular priceUnit price per$255.00 -
Vendor:Reliance XRProHills Reliance XR / ZeroWire System 80 Plus Two Way 4 Button Remote
Regular price $89.00Sale price $89.00 Regular priceUnit price per -
SaleVendor:Reliance XRHills Reliance Remote Kit for 8/12/128 DAS NX4/NX8/NX16 Alarm System - S1890A
Only 4 leftRegular price $119.00Sale price $119.00 Regular priceUnit price per$165.00 -
SaleVendor:Reliance XRHills 4 Button Alarm Remote - S1896A
Regular price $49.95Sale price $49.95 Regular priceUnit price per$89.00 -
SaleVendor:Reliance XRReliance NXX-8-WZ-AU XRPRO PCB With Metal Housing
Regular price $412.00Sale price $412.00 Regular priceUnit price per$599.00 -
SaleVendor:Reliance XRReliance XR Alarm Kit with Touch Screen Keypad, Siren & PIR Motion Sensor Detectors
Regular price $609.00Sale price $609.00 Regular priceUnit price per$1,056.00 -
SaleVendor:Reliance XRAlarm Magnetic Roller Reed Shutter | Heavy Duty
Only 6 leftRegular price $59.95Sale price $59.95 Regular priceUnit price per$79.00 -
SaleVendor:Ness SecurityNess Navigator Gen2 Touchscreen Keypad - 3.5" Color Display for D8XCel & DPlus (106-101)
Regular price $178.00Sale price $178.00 Regular priceUnit price per$255.00 -
SaleVendor:Ness SecurityNess KPX LCD Keypad White - Backlit Display for D8XCel & D16XCel Panels (106-310)
Only 4 leftRegular price $138.00Sale price $138.00 Regular priceUnit price per$199.00 -
SaleVendor:Ness SecurityNess Security Quantum-Q Quad PIR Motion Detector - NEW Model
Only 15 leftRegular price $41.95Sale price $41.95 Regular priceUnit price per$89.00 -
Vendor:Ness SecurityNess XIR100H Xline Series PIR Motion Detector - 15m Range Digital Analysis
Only 10 leftRegular price $49.95Sale price $49.95 Regular priceUnit price per -
SaleVendor:Reliance XRHills VoiceNav Lite LED Codepad
Only 3 leftRegular price $139.95Sale price $139.95 Regular priceUnit price per$165.00 -
SaleVendor:Reliance XR15m Pet Immune PIR Detector
Regular price $39.00Sale price $39.00 Regular priceUnit price per$65.00 -
SaleVendor:Ness SecurityNess DPlus 8-24 Zone Expandable Alarm Panel with Navigator Keypad - Australian Made Security System
Only 7 leftRegular price $445.00Sale price $445.00 Regular priceUnit price per$525.00 -
SaleVendor:Ness SecurityNess Security D16XCEL4G PANEL with Navigator Keypad inc SIM K-9323
Only 9 leftRegular price $539.00Sale price $539.00 Regular priceUnit price per$699.00 -
SaleVendor:Ness SecurityNESS D8XCEL 4G NAVIGATOR KEYPAD & COMBO SIREN KIT
Only 4 leftRegular price $554.00Sale price $554.00 Regular priceUnit price per$689.00 -
SaleVendor:Ness SecurityNess D8XD Deluxe Alarm Panel & Noise Kit with LCD Keypad (K-6311B)
Only 5 leftRegular price $405.00Sale price $405.00 Regular priceUnit price per$499.00 -
SaleVendor:Ness SecurityNess D16XD Navigator 16 Zone Alarm System Complete Kit with Siren - Professional Security Panel (K-6313)
Only 8 leftRegular price $519.00Sale price $519.00 Regular priceUnit price per$599.00 -
SaleVendor:HikvisionHikvision AX PRO Hub Kit, 1x Alarm Hub, 1x Keypad, 2x Sounder, 3x PIR Detector
Regular price $924.00Sale price $924.00 Regular priceUnit price per$1,089.00 -
SaleVendor:HikvisionHikvision AX PRO KIT DS-PWA96-Kit-WB/12V GEN2
Regular price $465.00Sale price $465.00 Regular priceUnit price per$799.00 -
SaleVendor:Ness SecurityNess 4G Wireless Security System & Two‑Way Voice Monitoring – Guardpost Alarm (SKU 106‑305S)
Regular price $659.00Sale price $659.00 Regular priceUnit price per$789.00 -
SaleVendor:Reliance XRHills Security Alarm System XR - Upgrade Board With Metal Housing
Only 9 leftRegular price $355.00Sale price $355.00 Regular priceUnit price per$425.00 -
SaleVendor:Reliance XRProHills Reliance Security Alarm System XR Pro Upgrade Kit
Regular price $489.00Sale price $489.00 Regular priceUnit price per$599.00 -
SaleVendor:Hikvision HiLookHikvision Hilook Wired Alarm Kit - 1X Alarm Panel, 1X Keypad, 2X PIR Sensors, 3X Tags, 1x Power Supply
Regular price $295.00Sale price $295.00 Regular priceUnit price per$330.00 -
SaleVendor:Reliance XRProHills Security Alarm System Reliance XRPro with Optex PIRs
Regular price $699.00Sale price $699.00 Regular priceUnit price per$999.00 -
SaleVendor:Reliance XRReliance XR Alarm Kit inc: XR Touch Screen Keypad Siren & Motion Sensor PIR Detectors
Regular price $629.00Sale price $629.00 Regular priceUnit price per$1,056.00 -
SaleVendor:Reliance XRProHills Reliance Security Alarm System XRPro Kit with Touchnav Keypad
Regular price $905.00Sale price $905.00 Regular priceUnit price per$999.00 -
SaleVendor:Reliance XRReliance XR Alarm Kit inc: Reliance XGENCONNECT Keypad Siren & Motion Sensor PIR Detectors
Regular price $442.00Sale price $442.00 Regular priceUnit price per$1,056.00 -
SaleVendor:Reliance XRReliance XR Alarm Upgrade Kit inc: Backup Alarm Battery & Plug Pack
Only 10 leftRegular price $314.00Sale price $314.00 Regular priceUnit price per$499.00 -
SaleVendor:BoschBosch Solution 3000 Wireless Alarm Kit – 2 Wireless PIRs + Icon Codepad | DIY No Wiring, Great Value
Regular price $795.00Sale price $795.00 Regular priceUnit price per$999.00 -
SaleVendor:BoschBosch 6000 Wireless Alarm Kit inc LCD Wifi Keypad
Regular price $1,049.00Sale price $1,049.00 Regular priceUnit price per$1,600.00 -
SaleVendor:BoschBosch Alarm Kit, 6000 with Wifi Keypad 3X Alarm PIR sensors
Regular price $849.00Sale price $849.00 Regular priceUnit price per$1,150.00 -
SaleVendor:BoschBosch 6000 Alarm Kit including: Smart Prox LCD Keypad and 3 x PIRS
Regular price $699.00Sale price $699.00 Regular priceUnit price per$799.00 -
SaleVendor:BoschBosch Alarm Kit - Solution 2000 with Icon Keypad & 2 X PIRs
Regular price $379.00Sale price $379.00 Regular priceUnit price per$499.00 -
SaleVendor:Ness SecurityNess Security 4G GSM Dialler 106-490NS Gen2 Unlocked
Only 3 leftRegular price $229.00Sale price $229.00 Regular priceUnit price per$329.00 -
Vendor:Ness SecurityNess Slim Line External Alarm Siren & Strobe Combination - 115dB Weatherproof
Only 5 leftRegular price $44.95Sale price $44.95 Regular priceUnit price per -
Vendor:Ness SecurityNess External Siren Kit - Outdoor Alarm Siren | Universal Compatibility
Regular price $74.00Sale price $74.00 Regular priceUnit price per -
SaleVendor:Ness Security2x Ness RK4 Radio Key Alarm Remotes - 4 Button Wireless Key Fob Twin Pack (106-167)
Regular price $119.00Sale price $119.00 Regular priceUnit price per$149.00 -
Vendor:Ness SecurityNess Security RK4 Radio Key & Receiver Kit - K-6009
Regular price $159.00Sale price $159.00 Regular priceUnit price per -
SaleVendor:Ness SecurityNess Wireless Smoke Detector CSIRO Certified - Easy DIY Installation (106-040)
Regular price $109.00Sale price $109.00 Regular priceUnit price per$145.00 -
Vendor:Ness SecurityNess Wireless Radio Keypad RKP - Battery Operated Remote Control (100-001)
Regular price $151.00Sale price $151.00 Regular priceUnit price per -
SaleVendor:Reliance XRHills TouchNav Alarm Keypad - S3237A
Only 6 leftRegular price $342.00Sale price $342.00 Regular priceUnit price per$399.00 -
SaleVendor:Ness SecurityNess Lux Wireless Pet PIR Motion Detector with LED Night Light - 15m Pet Immune (106-170)
Only 9 leftRegular price $129.00Sale price $129.00 Regular priceUnit price per$199.00 -
SaleVendor:BoschBosch Ethernet Module For Solution 2000/3000
Regular price $179.00Sale price $179.00 Regular priceUnit price per$299.00 -
SaleVendor:BoschBosch Alarm Siren/Horn, Strobe & Tamper switch, 12V 7AH Battery, Plug Pack and Internal Siren Bundle
Regular price $139.00Sale price $139.00 Regular priceUnit price per$199.00 -
SaleVendor:Reliance XRHills Reliance XR 80 Plus Two-Way Wireless Micro Reed
Regular price $89.00Sale price $89.00 Regular priceUnit price per$120.00 -
SaleVendor:Reliance XRHills Reliance XR 80 Plus Two Way Wireless Reed
Regular price $65.00Sale price $65.00 Regular priceUnit price per$99.00
Alarm Systems
Buy Alarm Systems Online – Trusted Home & Business Security Solutions
At Home Security Online, we provide a wide selection of high-quality alarm systems tailored to protect your home or business. Whether you're installing a new alarm system or upgrading an existing setup, we have reliable, cost-effective options to suit your needs.
Explore Our Alarm System Range:
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Wired Alarm Systems – Reliable security with professional-grade hard-wired solutions for homes and businesses.
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Wireless Alarm Systems – Flexible, easy-to-install systems with modern features and remote access capabilities.
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Alarm Kits – All-in-one alarm packages for quick and efficient setup, ideal for professional installation and alarm system upgrades.
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Alarm Accessories – Add-ons like sensors, remotes, keypads, and sirens to expand or upgrade your existing alarm system as well as replacement alarm parts.
Shop Leading Security Brands
We stock alarm systems and accessories from trusted brands known for performance and reliability, including:
Ness Security, Bosch Alarms, Hills Reliance XR & XRPro, Hikvision, and more – all backed by a 12-month warranty.